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29 Cards in this Set
- Front
- Back
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Distinguish between Proximate and Ultimate questions
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Proximate-asking about what happened Ultimate-Asking why it happened |
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Use examples in class to place animal behavior into an evolutionary context
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Migration of birds based on the temperature that they best reproduce at.
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Define sexual selection
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Some individuals out-reproduce others of a population because they are better at securing mates
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Provide an example of sexual selection
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Antlers of a deer, feathers of a peacock, any instance where a male looks different than a female
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Distinguish between intersexual selection and intersexual selection
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Intersexual selection-where males show off certain features to try to win over females, and females choose based on the investment of producing offspring Intersexual selection-Males fight over females without intervention of female |
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Understand why females are the choosy sex
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Because they have to make the investment of taking the time and energy to raise offspring
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Define a biological population
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A group of organisms at a certain time and place that have the ability to reproduce |
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define population density
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How many organisms live within a certain, described area
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How do scientists measure population density
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Scientists will mark and recapture animals within a certain area, then be able to make estimates about how many organisms live in the whole area
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Define dispersion
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pattern of distribution of populations (uniform, clumped, random)
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3 types of survivorship curves
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Straight, steady then big drop, big drop then steady
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Develop a conceptual model of population growth
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logistic graph
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Understand factors that limit population growth
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Resources, competition with other organisms
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define a community
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Populations of different species that share space sand time with their ecology
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Mutualism
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Both species benefit
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Consumption
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One species is positively affected, and the other is negatively affected
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competition
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Both species are negatively affected
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Commensalism
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One species is positively affected, and the other species is neither positively or negatively affected
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Top down- and bottom-up effects
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Top-Down: top of the food chain affects all the rest Bottom-up: bottom of the food chain affects all the rest |
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Identify the two major abiotic factors that determine terrestrial biomes
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Precipitation and temperature
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Differentiate between Primary Production and Net Primary Production
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Primary Production: the link between abiotic factors and life Net Primary Production: leftover energy used to generate biomass |
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Aquatic Abiotic Factory
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Depth, light, temp, salinity
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Define Biodiversity
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The variety of life on Earth at all its levels, from genes to ecosystems, and the ecological processes that sustain it
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Define species diversity
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Different species and their abundance
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Identify Biodiversity hotspots
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Usually by large areas of water
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Define and Endemic species
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A species that is unique to a defined geographic location
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Know all about 6th mass extinction event
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Caused by humans Ongoing Pollution, overpopulation, habitat loss |
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Greenhouse gasses
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CO2 Warms the planet by greenhouse effect Consequences include more gasses being released from ocean, similar to Permian extinction event |
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